Sound-Absorbing CMU - Type IVRF

Trenwyth Acousta-Wal®

ACOUSTA-WAL® sound-absorbing masonry units are your acoustical and aesthetic solution in one product. Whether it's a school gym, lecture hall or performance arts center, ACOUSTA-WAL is your solution to sound absorption and control. Its unique design controls sound transmission as it absorbs sound waves. ACOUSTA-WAL absorbs sound at all frequencies ... even the difficult-to-control low frequencies.

ACOUSTA-WAL® is available in Trendstone® finishes, as well as natural gray.

Use Type IVRF Units for broad range sound absorption, such as school gymnasiums, lecture halls, and performing art centers.

Available in 8", 10" or 12" thicknesses, Type IVRF Units have wide funnel-shaped slots, opening into a two chamber cavity separated by a metal septum laminated to a fiberglass filler. Fiberglass fillers are chemically inert, vermin resistant, incombustible and moisture-proof. Type IVRF Units also offer the advantage of open cavities for vertical reinforcing conduits or pipes.

Angelus Block is Southern California's distributor of pre-finished and acoustic Trenwyth® products from Echelon Masonry, an Oldcastle® Architectural brand. Trenwyth pre-finished ground faced concrete masonry units feature colors, shapes, sizes and finishes to inspire endless design possibilities. Download our Trenwyth brochure.

WARNING: This product can expose you to Silica, crystalline (airborne particles of respirable size) which is known to the State of California to cause cancer. For more information go to

Additional Resources